package org.example.d8_stream;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 目标：体验Stream流
 */
public class StreamTest1 {
    public static void main(String[] args) {
        List<String> names = new ArrayList<>();
        Collections.addAll(names,"张三丰","张无忌","周涵","张强");
        System.out.println(names);
        //找出姓张的 且是三个字的名字，存入到一个新的集合中去
        List<String> list = new ArrayList<>();
        for (String name : names) {
            if (name.startsWith("张") && name.length()== 3){
                list.add(name);
            }
        }
        System.out.println(list);

        //开始使用Stream流来解决这个需求
        List<String> list2 = names.stream().filter(s -> s.startsWith("张")).filter(x -> x.length() == 3).collect(Collectors.toList());
        System.out.println(list2);
    }
}
